* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}


/* header  */

li {
    list-style-type: none;
}

a {
    text-decoration: none;
    color: black;
}

img {
    vertical-align: middle;
}

header {
    width: 100%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000000;
    overflow: hidden;
}

.nav-first {
    height: 30px;
    width: 1544px;
    margin: 0 auto;
    /* opacity: 0; */
    /* background-color: #00008B; */
    /* padding-top: 6px; */
}

.nav-first::after {
    content: " ";
    width: 1544px;
    height: 1px;
    background: gray;
    display: block;
    position: absolute;
    bottom: 0;
    transition: all .5s;
}

.nav-first li {
    float: left;
    border-left: 1px solid gray;
    text-align: center;
    font-size: 10px;
    padding: 0 .9375em;
    margin-right: .25em;
    color: white;
}

.nav-first .lheader {
    float: right;
}

header #icon span {
    display: block;
    font-size: 123px;
    color: white;
    text-align: center;
    clear: both;
    position: relative;
    top: -20px;
    margin-left: 49px;
}

header #nav-sencod .first {
    text-align: center;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

#nav-sencod .first #yiji {
    float: left;
    text-align: center;
    padding-left: 20px;
    margin-left: 30px;
}

#nav-sencod button {
    border: 0;
    background: 0;
    outline: none;
    color: white;
}

#erji {
    width: 100%;
    /* height: 349px; */
    background-color: #fff;
    display: none;
    z-index: 11111;
}

#erji #menu2 {
    display: flex;
    flex-flow: row nowrap;
    /* display: none; */
    justify-content: center;
    align-items: stretch;
    align-content: flex-start;
    padding: 20px 10px 20px;
    z-index: 10000px;
    /* position: absolute; */
    /* top: 100%;
	 right: 0;
	 left: 0; */
}

#erji #menu2 #ul1 {
    border-right: 1px solid #e9e9e9;
    padding: 0 30px;
    width: 250px;
    float: left;
}

#erji #menu2 #menu2-1 {
    width: 1144px;
}

#erji #menu2 #ul1 a {
    display: block;
    padding: 10px 0 10px 0;
}

#erji #men2-right #men2-ul2 {
    width: 882px;
    overflow: hidden;
}

#erji #men2-right #menu2-img {
    width: 216px;
    position: relative;
}

#erji #men2-right #menu2-img .menu2-bg1 {
    background-image: url(../img/Smenu-1-1.webp);
}

#erji #men2-right #menu2-img .menu2-bg2 {
    background-image: url(../img/Smenu-2-2.webp);
}

#erji #men2-right #menu2-img .menu2-bg3 {
    background-image: url(../img/S2menu3-3.webp);
}

#erji #men2-right #menu2-img .menu2-bg4 {
    background-image: url(../img/Smenu-4-4.jpg);
}

#erji #men2-right #menu2-img .menu2-bg5 {
    background-image: url(../img/Smenu-4-4.jpg);
}

#erji #men2-right #menu2-img .menu2-bg6 {
    background-image: url(../img/S2menu-4-4.webp);
}

#erji #men2-right #menu2-img .menu2-bg7 {
    background-image: url(../img/Smenu-2-2.webp);
}

#menu2-img span {
    display: block;
    position: absolute;
    top: 0;
    /* right: 0; */
    right: -10px;
    bottom: 0;
    /* left: 0; */
    left: -10px;
    background-color: transparent;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50% 50%;
    opacity: 0;
    transition: opacity .3s linear;
}

#men2-right .link:hover span {
    opacity: 1;
}

#erji #men2-right .electronic_num {
    width: 3000px;
}

#erji #men2-right ul li {
    /* display: flex; */
    float: left;
    /* overflow: hidden; */
}

#men2-right #menu2-txt {
    text-align: center;
}

#men2-right {
    position: relative;
    overflow: hidden;
    padding: 0 30px;
    z-index: 1;
}

#men2-right .icon-arrow-right {
    display: block;
    font-size: 30px;
    position: absolute;
    left: 0;
    top: 138px;
    /* bottom: 270px; */
    color: black;
    display: none;
}

#men2-right .icon-jiantou {
    display: block;
    font-size: 30px;
    position: absolute;
    right: 0;
    top: 138px;
    /* bottom: 270px; */
    color: black;
}

#men2-ul2 #menu2-img img {
    display: block;
    width: 80%;
    height: auto;
    margin: 0 auto;
}

#men2-ul2 #menu2-img sapn {
    display: block;
    background-image: url(../img/Smenu-1-1.webp) display: block;
    position: absolute;
    top: 0;
    /* right: 0; */
    right: -10px;
    bottom: 0;
    /* left: 0; */
    left: -10px;
    background-color: transparent;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50% 50%;
    opacity: 0;
    transition: opacity .3s linear;
}

#erji #menu2-2 {
    display: flex;
}

#erji .menu-inner-2-a {
    text-align: left;
    display: block;
    width: auto;
    padding-right: 40px;
    max-width: calc(100% / 4);
    float: left;
}

#erji .menu-inner-2-a h3 {
    color: #25282a;
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    margin: 0;
}

#erji .menu-inner-2-a a {
    display: block;
    padding: 10px 20px 0 0;
    font-size: 12px;
    color: black;
    cursor: pointer;
}

section {
    height: 624px;
    overflow: hidden;
}

#bannner {
    width: 1544px;
    margin: 0 auto;
}

#oImg {
    position: relative;
    /* //绝对定位 */
    width: 100%;
    /* //如果不知道有多宽，直接用百分比，比如1000%，多出去的不用管 */
    height: 624px;
    float: left;
    /* overflow-x: hidden; */
    overflow: hidden;
    z-index: 1;
}

#picture {
    position: absolute;
    width: 10000%;
    height: 624px;
}

#oImg img {
    float: left;
    /* width: 100%; */
    height: 624px;
}

#oImg .icon-jiantou {
    display: block;
    font-size: 30px;
    position: absolute;
    right: 5px;
    top: 50%;
    color: white;
}

#oImg .icon-arrow-right {
    display: block;
    font-size: 35px;
    position: absolute;
    left: 5px;
    top: 50%;
    color: white;
}

#oImg #banner-txt {
    width: 349px;
    height: 100px;
    /* border: 1px solid black; */
    text-align: center;
    position: absolute;
    top: 55%;
    left: 40%;
    color: white;
}

#oImg #banner-txt h2 {
    font-size: 1.75em;
    margin-bottom: 29px;
    font-weight: normal;
}

#oImg #banner-txt a {
    font-size: 14px;
    color: white;
}

#oImg #banner-txt a::after {
    content: "";
    display: block;
    width: 46px;
    height: 2px;
    background-color: #fff;
    position: absolute;
    left: 50%;
    margin-left: -22px;
    bottom: 20px;
}

#list {
    /* height: 518px; */
    /* background-color: #007AFF; */
}

#list-con {
    width: 1207px;
    margin: 0 auto;
    /* background-color: #0000FF; */
}

#list-con ul {
    display: flex;
    justify-content: space-between;
    /* background-color: #6666BB; */
    margin: 0 auto;
    width: 1200px;
    height: 518px;
    /* flex-wrap: wrap; */
}

#list-con ul li {
    /* width: 250px; */
    text-align: center;
    /* width: 25%; */
    /* flex-wrap: wrap; */
}

#list-con #list-img {
    width: 250px;
    height: 312px;
    /* background-color: pink; */
    position: relative;
    /* text-align: center; */
}

#list-con #list-img img {
    position: absolute;
    width: 168px;
    height: 265px;
    z-index: 2;
    bottom: 5%;
    left: 18%;
}

#list-con #list-img .list-span {
    position: absolute;
    display: block;
    top: 0;
    right: 0;
    left: 0;
    width: 250px;
    height: 250px;
    background-color: #f6f4f5;
    z-index: 1;
    transition: all .2s linear;
    margin-top: 30px;
}

#list-con #list-img .list-span:hover {
    background-color: #ebe6e8;
}

#list-con #list-txt h3 {
    margin-bottom: 30px;
    font-size: 15px;
}

#list-con #list-txt p {
    margin-bottom: 15px;
    font-size: 13px;
}

#list-con button {
    display: block;
    width: 110px;
    height: 42px;
    background: #25282a;
    color: #fff;
    font-size: 11px;
    margin-left: 28%;
}

#list-con ul li button:hover {
    background: #bf9474;
    color: #fff;
    border-color: #bf9474;
}

#service {
    background-color: #f4f4f4;
    height: 600px;
    text-align: center;
    padding: 68px 0 85px;
}

#service #service-con {
    width: 1148px;
    height: 585px;
    box-sizing: border-box;
    /* background-color: #0086B3; */
    margin: 0 auto;
}

#service-con h1 {
    margin: 0;
    position: relative;
    text-transform: uppercase;
    font-size: 24px;
    letter-spacing: 3px;
}

#service-con h1::after {
    content: "";
    display: block;
    width: 64px;
    height: 3px;
    background-color: #b89678;
    position: absolute;
    left: 50%;
    margin-left: -32px;
    bottom: -15px;
}

#service #service-txt {
    font-size: 14px;
    letter-spacing: 2px;
    line-height: 1.4;
    width: 645px;
    margin: 30px auto 0;
}

#service #service-nav ul {
    margin: 45px 20px 50px;
    display: flex;
    flex-flow: row wrap;
    justify-content: center;
    align-items: stretch;
    align-content: flex-start;
}

#service #service-nav ul img {
    width: 150px;
    height: 146px;
}

#service #service-nav ul li {
    width: 190px;
    padding: 0;
    border: solid 20px #fff;
    background-color: #e7e6e7;
    height: 255px;
    position: relative;
    margin: 0 1%;
}

#service #service-nav li p {
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: absolute;
    z-index: 1;
    width: 100%;
    bottom: 20px;
}

#service #service-con button {
    /* display: block; */
    width: 173px;
    height: 35px;
    border: 1px solid black;
    font-weight: bold;
    font-size: 12px;
}

#service #service-con button:hover {
    background-color: #000000;
    color: white;
}

#bgimg {
    height: 441px;
    width: 100%;
    position: relative;
    overflow: hidden;
    background-color: pink;
}

#bgimg #bgimg-img {
    position: absolute;
    width: 100%;
}

#bgimg #bgimg-img img {
    width: 100%;
    height: 441px;
    /* height: 100%; */
    position: absolute;
}

#bgimg #bgimg-txt {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate3d(-50%, -50%, 0);
    max-width: 80%;
    color: #fff;
    font-size: 1.5em;
    text-align: center;
    font-family: Arial, sans-serif;
    font-style: normal;
    letter-spacing: .0625em;
}

#bgimg #bgimg-txt h2 {
    margin-bottom: 5px;
}

#bgimg #bgimg-txt a {
    display: inline-block;
    color: inherit;
    border-color: inherit;
}

#bgimg #bgimg-txt a::after {
    content: "";
    display: block;
    margin: .7em auto 0;
    height: 2px;
    border-color: inherit;
    border-bottom: 2px solid #000;
    border-color: inherit;
}

#footer {
    background: #000;
    margin: 0;
    padding: 0;
}

#footer #footer-top {
    background-color: #272523;
    padding: 33px 0;
    margin-bottom: 50px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
}

#footer #footer-top #footer-top-item {
    display: flex;
    width: 300px;
    align-items: center;
    color: #fff;
    text-transform: uppercase;
    position: relative;
    font-family: 'Arial', sans-serif;
    font-size: 10px;
    line-height: 18px;
}

#footer #footer-top #footer-top-item img {
    margin-right: 22px;
}

#footer #footer-menu {
    height: 400px;
    max-width: 1200px;
    margin: 0 auto;
    width: calc(100% - 48px);
    flex-wrap: wrap;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding-right: 207px;
    box-sizing: border-box;
}

#footer-menu ul li {
    font-size: 10px;
    line-height: 22px;
}

#footer-menu-c ul a {
    font-weight: bold;
    text-transform: uppercase;
    color: #747474;
    transition: .3s ease all;
    background-color: transparent;
}

#footer-menu-c ul a:hover {
    color: #fff;
}

#footer-menu-c h4 {
    margin: 0 0 10px;
    font-size: 12px;
    color: #fff;
    font-weight: normal;
    font-family: 'Arial', sans-serif;
    letter-spacing: 3px;
    text-transform: uppercase;
}

#footer #footer-legal {
    height: 85px;
    font-size: 10px;
    color: #7b706c;
    max-width: 1200px;
    margin: 0 auto;
    width: calc(100% - 48px);
    flex-wrap: wrap;
}

#footer #footer-legal p {
    font-size: 10px;
    color: #7b706c;
    text-align: justify;
    /* margin-bottom: 25px; */
    display: inline;
    margin: 0 0 10px;
}

#footer-bottom {
    border-top: 1px solid #7b706c;
    padding: 25px 0;
}

#footer-bottom-con {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    padding-left: 124px;
}

#footer-bottom-list ul {
    display: flex;
}

#footer-bottom-list ul a {
    color: #7b706c;
}

#footer-bottom-list ul a:hover {
    color: #337ab7;
}

#footer-bottom-list ul a:before {
    background-color: #fff;
    content: '';
    display: inline-block;
    height: 3px;
    margin: 0 15px;
    vertical-align: middle;
    width: 3px;
}

#footer-bottom-r a {
    display: block;
    text-decoration: none;
    height: 20px;
    line-height: 20px;
    margin-left: 1em;
}